Finding the Fourth Proportional to 11,071,990.80, 16,607,986.20 and 6,518,365.20
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Solution
The fourth proportional to 11,071,990.80, 16,607,986.20 and 6,518,365.20 is: 9,777,547.80
Step by Step Solution
- Step 1: Write the proportion equation
11,071,990.80 : 16,607,986.20 = 6,518,365.20 : x - Step 2: Convert to fraction form
11,071,990.80/16,607,986.20 = 6,518,365.20/x - Step 3: Cross multiply
11,071,990.80x = 16,607,986.20 × 6,518,365.20 - Step 4: Simplify right side
11,071,990.80x = 108,256,919,288,160.23 - Step 5: Solve for x
x = 108,256,919,288,160.23/11,071,990.80 - Step 6: Final answer
x = 9,777,547.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.